Surf Forecasts:
Jaconé surf forecast from 12 Sep 2026:
- Best quality surf: Thursday 17 Sep, 12PM (local time) - 6ft (1.8m), 13s period, S swell with glassy winds.
- Most powerful swell: Thursday 17 Sep, 12PM (local time) - 6ft (1.8m), 13s period, S swell with 1,070 kJ wave energy.
- Next surfable swell (1★+): Saturday 12 Sep, 3AM (local time) - 3ft (0.9m), 12s period with SSW swell.
Best Forecast Surf Conditions for Jaconé this week:
The surf forecast for Jaconé over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Saturday (Sep 12) at 3AM. The primary swell is predicted to be 0.9m and 12s period with a secondary swell of 0.6m and 7s. Another secondary swell of 1.3m and 7s is also forecast. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Jaconé in the next 16 days are 1.8m 13s and forecast to arrive on Thursday (Sep 17) at 12PM. Winds are predicted to be glassy at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.4m 6s period and expected on Friday (Sep 18) at 6PM.
| Wave Type | Time (-03) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 3AM (Sat 12th Sep) | 3ft (0.9m) 12s |
| Best Surf | 12PM (Thu 17th Sep) | 6ft (1.8m) 13s |
| Most Powerful | 12PM (Thu 17th Sep) | 6ft (1.8m) 13s |
Table - best surf conditions forecast for Jaconé over the next 16 days.
The Lowdown
Alright, folks, Rusty here. Let’s have a good look at the next couple of weeks for Jaconé.
To be straight with you, the start of this stretch is a bit of a fizzer. We’ve got a couple of days of small, messy, onshore slop that isn’t going to get anyone too excited. It’s not until Sunday afternoon that things start to clean up, and even then, it’s pretty small. Monday morning will be your first proper chance to get wet, with clean conditions and a bit of energy starting to build behind a short-period south swell. It’s nothing special, but it’s surfable. The light offshore wind will be the main drawcard.
The early part of the week stays in that modest range, but Thursday afternoon is where things start to get interesting. We’ve got a solid push of south swell filling in, with the energy jumping up and clean, offshore winds. This is when it starts to feel real. The swell is up around 5.6ft to 5.9ft with a decent period, and it's shaping up nicely for the more experienced crew. We’re looking at the standout of the first week right here.
Now, hold on. If you can be patient, the real gem is waiting for us on Friday the 25th. This is the one. We’ve got a strong groundswell from the south, looking at 6.2ft to 6.9ft with a long 13–14 second period. The energy reading is massive, and the conditions are pristine – glassy in the morning with clean offshore breezes. This is a proper session, a standout day for sure. The swell direction is good, and the long period will give those waves some serious push. Just remember, with size like this, it’s strictly for the experienced surfers; if you’re just starting out, give this one a miss.
After that peak, it eases off. Saturday the 26th gets chopped up by onshore winds, and we are back to more average conditions for the start of the following week. There’s a bit of action on the 27th, but it’s not holding a candle to that Friday.
So, to sum it up: the first part is about waiting, Thursday the 17th afternoon is a warm-up, but the clear winner, the one to circle on the calendar, is Friday the 25th. Get your board ready for that one.
Short Range ForecastHeavy rain (total 20mm), heaviest during Sun night. Warm (max 26°C on Fri night, min 19°C on Sun afternoon). Winds decreasing (strong winds from the W on Fri night, calm by Mon afternoon). | Days 5-7 Weather SummaryHeavy rain (total 20mm), heaviest during Mon night. Warm (max 21°C on Tue morning, min 18°C on Thu afternoon). Wind will be generally light. | ||||||||||||||||||
Saturday 12 | Sunday 13 | Monday 14 | Tuesday 15 | Wednesday 16 | Thursday 17 | ||||||||||||||
Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map |  |  |  |  |  |  |  | ||||||||||||
Wave Height (m) Direction Period (s) | S 12 | S 12 | S 11 | S 11 | SSW 6 | S 7 | S 8 | S 8 | S 9 | SSE 8 | SE 9 | SE 9 | SE 9 | SE 9 | S 13 | S 12 | S 13 | S 12 | S 11 |
Wave Graph  | |||||||||||||||||||
 kJ | 299 | 174 | 116 | 58 | 66 | 127 | 228 | 199 | 225 | 354 | 281 | 293 | 255 | 186 | 321 | 464 | 971 | 989 | 533 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | cross-on | on | on | cross-on | cross-off | cross-off | off | cross | cross-on | glassy | on | cross-on | cross-on | on | cross-on | cross | cross-off | off |
High Tide | 2:38AM1.11m | 3:15PM0.97m | 3:11AM1.10m | 3:31PM0.94m | 3:44AM1.06m | 3:49PM0.92m | 4:19AM0.99m | 4:10PM0.88m | 4:56AM0.91m | 4:35PM0.84m | 5:41AM0.82m | 5:06PM0.79m | |||||||
Low Tide | 9:13AM0.02m | 9:18PM0.17m | 9:47AM0.10m | 9:50PM0.15m | 10:21AM0.19m | 10:25PM0.15m | 10:56AM0.29m | 11:03PM0.17m | 11:36AM0.38m | 11:49PM0.21m | 12:27PM0.47m | 00:48AM0.27m | |||||||
 |  |  |  |  | |  |  | | |  | |  | | | | | |  | |
 | — | 5:50 | — | — | 5:48 | — | — | 5:48 | — | — | 5:47 | — | — | 5:46 | — | — | 5:45 | — | — |
 | — | — | 5:43 | — | — | 5:43 | — | — | 5:43 | — | — | 5:44 | — | — | 5:44 | — | — | 5:44 | — |
mm | — | — | 1 | 1 | 2 | 2 | 13 | — | 1 | 11 | — | — | 6 | 1 | — | 2 | — | — | — |
Temp °C | 26 | 26 | 25 | 21 | 20 | 19 | 19 | 21 | 21 | 20 | 21 | 21 | 20 | 21 | 21 | 20 | 19 | 18 | 18 |
Feels °C | 28 | 28 | 25 | 22 | 21 | 19 | 19 | 23 | 23 | 22 | 23 | 22 | 20 | 18 | 19 | 19 | 19 | 18 | 16 |
Swell 1 Height (m) Direction Period (s) | S 12 | S 12 | S 11 | SSW 5 | SSW 6 | S 7 | S 8 | S 8 | S 9 | SSE 8 | SE 9 | SE 9 | SE 9 | SE 9 | S 13 | S 12 | S 13 | S 12 | S 11 |
| kJ | 299 | 174 | 116 | 24 | 66 | 127 | 228 | 199 | 225 | 354 | 281 | 293 | 255 | 186 | 321 | 464 | 971 | 989 | 533 |
Swell 2 Height (m) Direction Period (s) | E 8 | E 8 | E 8 | S 11 | ESE 9 | S 9 | E 8 | E 8 | E 8 | S 12 | SSW 11 | S 10 | S 10 | S 10 | ESE 9 | ESE 9 | SE 8 | ESE 8 | ESE 8 |
| kJ | 57 | 43 | 30 | 58 | 25 | 44 | 36 | 50 | 50 | 141 | 198 | 164 | 145 | 141 | 138 | 96 | 70 | 39 | 28 |
Swell 3 Height (m) Direction Period (s) | ESE 12 | ESE 11 | ESE 11 | E 8 | SSW 10 | E 9 | S 15 | S 13 | S 13 | E 8 | E 8 | E 8 | S 16 | S 13 | S 10 | SW 5 | ESE 8 | SE 8 | SE 8 |
| kJ | 13 | 12 | 12 | 20 | 35 | 38 | 4 | 55 | 83 | 30 | 20 | 21 | 5 | 123 | 96 | 6 | 61 | 10 | 2 |
Wind waves Height (m) Direction Period (s) | — | W 2 | SW 3 | — | — | — | E 4 | — | — | — | — | — | W 4 | SW 5 | SW 5 | S 5 | — | — | ENE 3 |
| kJ | — | 1 | 5 | — | — | — | 15 | — | — | — | — | — | 10 | 23 | 60 | 40 | — | — | 1 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 0 | 16 | 58 | 66 | 10 | 0 | 0 | 0 | 10 | 58 | 0 | 58 | 64 | 66 | 253 | 77 | 10 | 0 | 0 |
Best forecast wave conditions in Rio de Janeiro | |||||||||||||||||||
Best forecast wave conditions in Brazil | |||||||||||||||||||
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Information about the Jaconé Surf forecast
The above surf forecast table for Jaconé provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Jaconé can be found by selecting the local surf guide option on the grey menu. Our Jaconé surf forecast is unique since it includes wave energy (power) that defines the real feel of the surf rather than just the height or the period. If you surf the same spot (Jaconé) regularly then make a mental note of the wave energy from the surf forecast table each time you go. Very soon you may start to choose your surf days based on the wave energy alone combined with our forecast of favourable offshore wind conditions. Our star ratings will help here and of course you will also find the usual wave height and period predictions on our surf forecasts as well as a full break down of the swell components under our advanced users option (to reveal that, click the little Einstein character under the tide times).
Further information to help with frequently asked questions about our surf forecast for Jaconé may be found under the help tab on the top menu and also by moving your mouse over the question marks on the surf forecast table itself. Please always bear in mind that the forecast is for near-shore open water and local factors at each surf break influence the actual breaking wave height, such as the beach / reef profile, water depths offshore and shelter.
Jacone is 14 km (9 miles) from the city of Saquarema. If you plan a holiday in Rio de Janeiro, look for hotels and other accommodation in Saquarema. Saquarema has rooms for a wide range of budgets as well as car hire and transport links.
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